bird software package provides Internet Routing Daemon, you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install bird
bird is installed in your system.
Make ensure the bird package were installed using the commands given below,
$ sudo dpkg-query -l | grep bird *
You will get with bird package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Network |
| Package | bird |
| Version | 1.5.0-4build1 |
| Description | Internet Routing Daemon |
| Sub Section | Net |